Rollup merge of rust-lang#44567 - budziq:stabilize_iterator_for_each,…

… r=alexcrichton stabilized iterator_for_each (closes rust-lang#42986) Also updated clippy and rls as these use the iterator_for_each I've made my first PR's today so most likely I've done something wrong. Sorry about that!
TimNN · Sep 17, 2017 · 640dcef · 640dcef
2 parents 98491ba + b715290
commit 640dcef
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diff --git a/src/doc/unstable-book/src/library-features/iterator-for-each.md b/src/doc/unstable-book/src/library-features/iterator-for-each.md
diff --git a/src/libcore/iter/iterator.rs b/src/libcore/iter/iterator.rs
@@ -498,8 +498,6 @@ pub trait Iterator {
  /// Basic usage:
  ///
  /// ```
- /// #![feature(iterator_for_each)]
- ///
  /// use std::sync::mpsc::channel;
  ///
  /// let (tx, rx) = channel();
@@ -514,15 +512,13 @@ pub trait Iterator {
  /// might be preferable to keep a functional style with longer iterators:
  ///
  /// ```
- /// #![feature(iterator_for_each)]
- ///
  /// (0..5).flat_map(|x| x * 100 .. x * 110)
  /// .enumerate()
  /// .filter(|&(i, x)| (i + x) % 3 == 0)
  /// .for_each(|(i, x)| println!("{}:{}", i, x));
  /// ```
  #[inline]
- #[unstable(feature = "iterator_for_each", issue = "42986")]
+ #[stable(feature = "iterator_for_each", since = "1.22.0")]
  fn for_each<F>(self, mut f: F) where
  Self: Sized, F: FnMut(Self::Item),
  {

diff --git a/src/tools/rls b/src/tools/rls